pg 188-192 Flashcards
how is the wavefunction of a molecular orbital theory written
as a product of N single-electron wavefunction
what does LCAO stand for
linear combination of atomic orbitals
what does LCAO mean in the orbital theory
atomic orbitals on each atom interfere because of the wave character
what interference is from in-phase combination
constructive
what interference is from out of phase combination
destructive
equation for in-phase combination of hydrogen 1s orbitals
psi in phase = phi1s (HA) + phi1s (HB)
difference between equation in-phase and out of phase combination
in phase in plus out of phase is minus
why do in phase combination look like ovals for hydrogen
because the addition means greater wavefunction between the nuclei so thicker
what does the out of phase antibonding orbital look like and why
a hourglass because the minus means less wavefunction between the nuclei
if there are two orbitals being bonded together how many bonding and anti bonding orbitals will there be
two
what does in phase combination graph look like
up into two point slight dip between them
what does out of phase combination graph look like
one point then steeply decreases to 0 in between them
what is the label for antibonding
an asterisk
what does the number on the orbital label mean
if it is the lowest energy combination
what does a g orbital label mean
if you invert all the points it will still be the same
